# SecPlane

TODO

```
struct SecPlane play
{
   double  D;
   double  NegiC;
   vector3 Normal;

   void   ChangeHeight(double hdiff);
   double GetChangedHeight(double hdiff) const;
   double HeightDiff(double oldd, double newd = 0.0) const;
   bool   IsEqual(SecPlane other) const;
   bool   IsSlope() const;
   int    PointOnSide(vector3 pos) const;
   double PointToDist(vector2 xy, double z) const;
   double ZAtPointDist(vector2 v, double dist) const;

   clearscope double ZAtPoint(vector2 v) const;
}
```

- `D`

   TODO

- `NegiC`

   TODO

- `Normal`

   TODO

- `ChangeHeight`

   TODO

- `GetChangedHeight`

   TODO

- `HeightDiff`

   TODO

- `IsEqual`

   TODO

- `IsSlope`

   TODO

- `PointOnSide`

   TODO

- `PointToDist`

   TODO

- `ZAtPointDist`

   TODO

- `ZAtPoint`

   TODO

<!-- EOF -->